US2024066821A1PendingUtilityA1

Sipe blade, tire molding mold, and tire manufacturing method

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Assignee: BRIDGESTONE CORPPriority: Feb 9, 2021Filed: Nov 9, 2021Published: Feb 29, 2024
Est. expiryFeb 9, 2041(~14.5 yrs left)· nominal 20-yr term from priority
Inventors:Yasuyuki Ishihara
B29D 30/0606B29D 2030/0613B29L 2030/00B60C 11/1218B60C 11/1281B29D 2030/061
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Claims

Abstract

A sipe blade for molding a sipe, which is provided in a tire molding mold for molding a tire, the sipe blade being formed by overlapping a plurality of members that are made of a rolled material and that are individually formed to have a constant thickness.

Claims

exact text as granted — not AI-modified
1 .- 6 . (canceled) 
     
     
         7 . A sipe blade for molding a sipe, which is provided in a tire molding mold for molding a tire, the sipe blade being formed by overlapping a plurality of members that are made of a rolled material and that are individually formed to have a constant thickness. 
     
     
         8 . The sipe blade according to  claim 7 , wherein the plurality of members are overlapped each other on a part of a peripheral portion of each of the members. 
     
     
         9 . The sipe blade according to  claim 7 , wherein, due to the overlapping, the sipe blade has a portion thick in thickness and a portion thin in thickness. 
     
     
         10 . The sipe blade according to  claim 8 , wherein, due to the overlapping, the sipe blade has a portion thick in thickness and a portion thin in thickness. 
     
     
         11 . The sipe blade according to  claim 9 , wherein the side blade is arranged so that the thin portion of the sipe comes to a position leading to a main groove of the tire. 
     
     
         12 . The sipe blade according to  claim 10 , wherein the side blade is arranged so that the thin portion of the sipe comes to a position leading to a main groove of the tire. 
     
     
         13 . A tire molding mold that is provided with the sipe blade according to  claim 7 . 
     
     
         14 . A tire manufacturing method, comprising:
 providing a sipe blade, which is formed by overlapping a plurality of members that are made of a rolled material and that are individually formed to have a constant thickness, in a tire molding mold for molding a main groove in a tire, and molding the tire.   
     
     
         15 . A tire molding mold that is provided with the sipe blade according to  claim 8 . 
     
     
         16 . A tire molding mold that is provided with the sipe blade according to  claim 9 . 
     
     
         17 . A tire molding mold that is provided with the sipe blade according to  claim 10 . 
     
     
         18 . A tire molding mold that is provided with the sipe blade according to  claim 11 . 
     
     
         19 . A tire molding mold that is provided with the sipe blade according to  claim 12 .

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